Sofʹia Vasilʹevna Kovalevskaı︠a︡ 1850-1891
Kochina, P. IA.(Pelageı︠a︡ I︠A︡kovlevna)
Moskva Nauka
1981
Kovalevskaı︠a︡, S. V. (Sofʹia Vasilʹevna), 1850-1891
Mathematicians